A liquid pump with adjustable length and a feed tank are provided. The liquid pump includes a tube component, a pump body, a sealing ring, and a fixing piece. The tube component includes a first tube and a second tube, the first tube and the second tube are sleeved with each other, the first tube is slidable relative to the second tube. The pump body is mounted in a first end of the first tube away from the second tube. The sealing ring is hermetically connected between the first tube and the second tube. The fixing piece is sleeved on the first tube and the second tube. The fixing piece is configured to fix the first tube and the second tube. A length of the tube component is flexibly adjusted to match tanks of different depths, while taking into account sealing and stability.

Aspects of the disclosure relate to fluid injection systems, apparatus, methods, and associated components thereof that include flexible hoses for wellhead sites. In one implementation, a fluid injection system for wellhead sites includes a platform, a pump manifold mounted to the platform, and a pair of rails mounted to the platform. The fluid injection system includes a trolley disposed between the pair of rails and above the pump manifold. The trolley is movable along the pair of rails. The fluid injection system includes an articulation arm device mounted to the trolley. The articulation arm device includes one or more pivot joints coupled between two or more arms, and a connection device coupled to an end arm of the two or more arms.

A method for delivering a processing solution includes providing a concentrated processing solution in a bioprocess container, the concentrated processing solution being produced at a first site. The method also includes combining the concentrated processing solution with a biopolymer containing solution produced in a bioreactor at a second site different from the first site. In some embodiments, the processing solution is a buffer for processing products of cells cultured in a bioreactor. A system and a pharmaceutical production facility for carrying out the method is also provided.

A variable temperature control assembly for a water dispenser, using a variable water temperature selector, that delivers water to the consumer at the temperature requested on the variable temperature selector by calculating the required ratio of hot water, cold water and ambient water needed to deliver water at the temperature requested.

A coating system operations vehicle. Related methods are provided for filling a tank and operating coating equipment on a vehicle. The methods include pumping coating from containers into a tank on the vehicle and dispensing the coating for application on a surface. A method also includes removing residual coating from the containers after pumping out coating and adding the residual coating material to the tank. If the level of coating is at the desired level in the tank, a layer of water may be formed over the coating in the tank.

A coating system operations vehicle. Related methods are provided for filling a tank and operating coating equipment on a vehicle. The methods include pumping coating from containers into a tank on the vehicle and dispensing the coating for application on a surface. A method also includes removing residual coating from the containers after pumping out coating and adding the residual coating material to the tank. If the level of coating is at the desired level in the tank, a layer of water may be formed over the coating in the tank.

A variable temperature control assembly for a water dispenser, using a variable water temperature selector, that delivers water to the consumer at the temperature requested on the variable temperature selector by calculating the required ratio of hot water, cold water and ambient water needed to deliver water at the temperature requested.

Provided herein is a slurry tank having an articulated boom providing a fluid pathway from an end of the boom to the slurry tank, the boom being articulated such that it is selectably positionable in a first and a second position. When the boom is in the first position, the end of the boom is located outside of the slurry tank and, when the boom is in the second position, the end of the boom is located inside of the slurry tank.

A spigot and valve system for a gasoline can includes a nozzle, an air return conduit within the nozzle, and a spigot housing containing a valve system. The valve system includes an air return shaft slidable within the spigot housing, a gas valve diaphragm secured to the air return shaft, a gas outlet spring, and an actuation lever. An inner air return shaft is positioned within and slidable with respect to the air return shaft. The system also includes a carriage slidably engaged with the inner air return shaft, an air return diaphragm attached to the carriage, and an air return spring between the air return shaft and carriage. The system operates in three positions to control gas flow and air return, ensuring safe and controlled dispensing of gasoline.